Gmail exposes personal email addresses.
As a courtesy, I sent a meeting invite to the parties here at my company, as well as to the applicant, whom is using a Gmail account. The problem is that when the applicant responded to the meeting invite (initiated from my work email) it sent the response to my personal Gmail account, marking that account as the meeting organizer.
I confirmed with the applicant that he sees my personal Gmail account as well and this concerns me. I have no expectations of Google not knowing who I am and linking those accounts together on their side - it does bother me that they would simply switch the email address out for my personal one. In this case I don't really care if the applicant has my personal email address, but at the same time, what if I did?
TL;DR Google exposes personal Gmail addresses when meeting invites are sent from Outlook on accounts it knows are linked together.
(Edit: Changed title to be less tongue in cheek and more to the point)